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Finding the Fourth Proportional to 617,040.46, 925,676.55 and 280,104.76

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Solution

The fourth proportional to 617,040.46, 925,676.55 and 280,104.76 is: 420,209.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,040.46 : 925,676.55 = 280,104.76 : x
  2. Step 2: Convert to fraction form
    617,040.46/925,676.55 = 280,104.76/x
  3. Step 3: Cross multiply
    617,040.46x = 925,676.55 × 280,104.76
  4. Step 4: Simplify right side
    617,040.46x = 259,286,407,875.38
  5. Step 5: Solve for x
    x = 259,286,407,875.38/617,040.46
  6. Step 6: Final answer
    x = 420,209.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.